Comparison of the fluorescence behavior of a biocrude oil and crude petroleum oils

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Published

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SCAN SPECTRA
EDIBLE OILS
CLASSIFICATION
SPECTROSCOPY

Volume

20

Issue

Start Page

783

End Page

785

Abstract

The production and characterization of biocrude and petroleum like products from natural, renewable resources such as oil-bearing plant seeds is an interesting area of research at the moment. The present article discusses the results of a comparative fluorescence study in relation to the composition of a biocrude with petroleum crude oil of Assam, India (Assam-A), and some other crude oils around the world. It has been observed that biocrude has a very different lifetime-wavelength plot when compared to that of Assam-A and other petroleum crude oils. Although biocrude has a normalized lifetime-wavelength profile similar to that found in light crude petroleum oils, the magnitude of the lifetimes are dramatically reduced by the presence of a high concentration of polar compounds ((similar to)16.11%). The study of TSFS plots shows that Assam-A has a profile similar to most light-medium crude oils, but the biocrude plot is totally different from any of the crude oils for which we have TSFS data. This indicates that the biocrudes have a radically different distribution compared to crude oils. This might also explain the "pinch point" of the biocrude at an excitation wavelength below (similar to)300 nm.